Ultra-fine PM2.5 dust filters,filter fine dust particles.
It is recommended to replace 1pcs within three month.
Size: 5.3 X 3.5 cm/2.09 X 1.38inch
Application: Professional for ResMed CPAP S9/S10
1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 1-3cm measuring deviation due to manual measurement.
size 1:10 X Filter Cotton
size 2:20 X Filter Cotton